2004.5-2005 GM 6.6L Duramax Replacement Up-Pipe (Passenger Side) for PPE Exhaust Manifold 2013-chevrolet-silverado-2500hd-6-6l-v8-turbo-diesel--duramax--esi8671087 the factory air cleaner outlet

the factory air cleaner outlet tube is trimmed after the flexible coupler where it starts to downsize

0L Duramax Engine Oil Pan

single-exit system is built from durable 304 stainless steel for long-lasting corrosion resistance and clean aesthetics

Leaky up-pipes can rob horsepower

or fuel injection computer

2004.5-2005 GM 6.6L Duramax Replacement Up-Pipe (Passenger Side) for PPE Exhaust Manifold 2013-chevrolet-silverado-2500hd-6-6l-v8-turbo-diesel--duramax--esi8671087 the factory air cleaner outletThis Up Pipe works with the PPE performance exhaust manifold. This Duramax Up pipe will give your GMC Sierra or Chevy Silverado significant reduction in exhaust back pressure and helping increase flow. This Free flowing stainless steel inner liner bellow improves the overall look and performance of your GM 6. 6L Duramax. The Up Pipe is made with stainless steel 11 gauge . 120 inch wall, 2 inch OD and will give faster turbo response with lower exhaust